A diatomic hydrogen molecule is shown in the diagram.

Which estimate of the distance between the two hydrogen nuclei in a hydrogen molecule is correct?
7.4×10−8 m7.4 \times 10^{-8}\text{ m}7.4×10−8 m
7.4×10−11 m7.4 \times 10^{-11}\text{ m}7.4×10−11 m
7.4×10−15 m7.4 \times 10^{-15}\text{ m}7.4×10−15 m
7.4×10−19 m7.4 \times 10^{-19}\text{ m}7.4×10−19 m